Compilare: main.cpp: In function 'int main()': main.cpp:19:16: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=m;i++) ^~~ main.cpp:21:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' cout<<"\n"; ^~~~ main.cpp:8:15: warning: unused variable 'j' [-Wunused-variable] int n,m,i,j,lv; ^